Heat dissipation device for power conversion equipment

Abstract

The invention relates to the technical field of electric power equipment, and provides a heat dissipation device for electric power conversion equipment, including a shell assembly, electric power conversion equipment and a heat dissipation fan assembly, wherein the shell assembly includes an upper frame, a lower frame and support columns, the upper frame is connected to the lower frame through a plurality of support columns, the electric power conversion equipment is mounted on the upper surface of the lower frame, an opening is provided on the surface of the upper frame, the heat dissipation fan assembly is installed in the opening, and the shell assembly also includes a rotating assembly, a medium circulation assembly and a driving part, the rotating assembly is installed between the upper frame and the lower frame, the rotating assembly includes a rotating shell and a cooling part, the cooling part is installed in the rotating shell, the rotating shell and the cooling part are located between two adjacent support columns, an air vent and a water guide groove are provided on the surface of the rotating shell, a medium cold end of the medium circulation assembly is connected to the upper end of the cooling part, a medium hot end is connected to the lower end of the cooling part, and the driving part is meshedly connected to the upper end of the cooling part, and has the characteristics of good heat dissipation effect, dust prevention and rain prevention.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a heat dissipation device for electric power conversion equipment. Background Art

[0002] Since various electrical equipment and places of use have rated voltage and frequency requirements, many work locations lack distribution and transformation equipment, resulting in voltage mismatch and inability to use the equipment. It is necessary to use power conversion equipment to convert the output power of the transmission end so that the electrical equipment can use it. Power conversion equipment is a device that converts AC power into DC power or DC power into AC power. Common power conversion equipment includes rectifiers and inverters. Rectifiers are devices that convert AC power into DC power and can be used for power supply devices and detection of radio signals.

[0003] Although the existing power conversion equipment can also dissipate heat automatically, the heat dissipation devices are generally directly dissipated through cooling fans, and the heat dissipation effect is relatively poor. In addition, the existing heat dissipation devices cannot be adjusted according to different weather environments. In order to cooperate with heat dissipation, the outer shell of the power conversion equipment is generally provided with heat dissipation ports or heat dissipation holes. When encountering windy and sandy weather or rainy weather, wind, sand and rain can easily enter the power conversion equipment through the heat dissipation ports or heat dissipation holes. Summary of the invention

[0004] The object of the present invention is to provide a heat dissipation device for power conversion equipment, aiming to solve the problems of poor heat dissipation effect and inability to prevent dust and rain when using an existing heat dissipation device for power conversion equipment.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat dissipation device for power conversion equipment, comprising a housing assembly, a power conversion equipment and a heat dissipation fan assembly, wherein the housing assembly comprises an upper frame, a lower frame and support columns, wherein the upper frame is connected to the lower frame via a plurality of support columns, wherein the power conversion equipment is mounted on the upper surface of the lower frame, wherein an opening is provided on the surface of the upper frame, wherein the heat dissipation fan assembly is mounted in the opening, and further comprising a rotating assembly, a medium circulation assembly and a driving unit;

[0006] The rotating assembly is installed between the upper frame and the lower frame, and the rotating assembly includes a rotating shell and a cooling part, and the cooling part is installed in the rotating shell. The rotating shell and the cooling part are in a plurality of numbers, and the rotating shell and the cooling part are located between two adjacent support columns. The rotating shell surface is provided with air holes and water guide grooves, and the air holes on both sides of the rotating shell are not aligned with each other.

[0007] The medium cold end of the medium circulation assembly is connected to the upper end of the cooling part, and the medium hot end is connected to the lower end of the cooling part;

[0008] The driving part is meshingly connected with the upper end of the cooling part to drive the rotating assembly to rotate around its own axis.

[0009] As a further solution of the present invention, a center hole and a cavity are provided in the rotating shell, the cavity is symmetrically distributed about the center hole, a slot is provided between the center hole and the cavity, the upper end of the rotating shell is in contact with and connected to the lower surface of the upper frame, and the lower end of the rotating shell is in contact with and connected to the upper surface of the lower frame.

[0010] As a further solution of the present invention, the cooling part includes a central tube, an annular tube and a transmission gear, the transmission gear is fixedly sleeved above the central tube, the number of the annular tubes is several, and the several annular tubes are evenly connected to the surface of the central tube, a straight tube is connected between the annular tube and the central tube, the central tube is plug-connected in the center hole, the annular tube and the straight tube are respectively embedded in the cavity and the slot, the upper and lower ends of the central tube are respectively connected to the medium cold end and the medium hot end of the medium circulation component, and the driving part is meshed and connected with the transmission gear.

[0011] As a further solution of the present invention, the upper surface of the lower frame is inclined from the inside toward the outside, the lower end of the rotating shell is provided with an opening, the upper surface of the lower frame is connected with a water retaining ring, the cooling fan assembly is located on the inside of the water retaining ring, and the rotating assembly is located on the outside of the water retaining ring.

[0012] As a further solution of the present invention, the driving part includes a driving member and a transmission member, the driving member includes a driving motor and a driving gear, the transmission member is a ring gear, the driving motor is connected to the driving gear through a driving shaft, the driving gear and the transmission gear are both meshed and connected with the transmission member, a fixed guide rail is installed above the upper frame, and the transmission member is rotatably connected in the fixed guide rail.

[0013] As a further solution of the present invention, the heat dissipation fan assembly includes a ventilation plate and a heat dissipation fan body. The number of the heat dissipation fan bodies is several, and the several heat dissipation fan bodies are installed on the surface of the ventilation plate. The ventilation plate is installed in the opening.

[0014] As a further scheme of the present invention, the medium circulation component includes a medium cooling and conveying part, a medium cold end conveying main pipe, a medium cold end conveying branch pipe, a medium hot end return branch pipe, a medium hot end return main pipe and a circulation pipe, one end of the medium cold end conveying branch pipe and the medium hot end return branch pipe are respectively plugged and connected with the two ends of the central pipe, the other ends of the medium cold end conveying branch pipe and the medium hot end return branch pipe are respectively connected to the medium cold end conveying main pipe and the medium hot end return main pipe, the medium cold end conveying main pipe is connected to the cold end outlet of the medium cooling and conveying part, and the medium hot end return main pipe is connected to the hot end inlet of the medium cooling and conveying part through the circulation pipe.

[0015] The beneficial effects of the present invention are as follows: the rotating assembly arranged between two adjacent support columns is connected to the medium circulation assembly, which can cool the air entering the surface of the power conversion equipment from the outside, thereby improving the heat dissipation efficiency of the power conversion equipment. When the driving part drives the rotating assembly to rotate until the gap between the support columns is sealed, the present invention has the characteristics of anti-dust and anti-rainwater. When the driving part drives the rotating assembly to rotate until the gap between the support columns is the largest, the air circulation can be maximized, so that the present invention has the characteristics of low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first stereoscopic view of a heat dissipation device for power conversion equipment according to an embodiment of the present invention.

[0017] Figure 2 It is a three-dimensional diagram of the housing assembly in an embodiment of the present invention.

[0018] Figure 3 It is an assembly diagram of the housing assembly, the power conversion device and the cooling fan assembly in an embodiment of the present invention.

[0019] Figure 4 4 is a three-dimensional diagram of a heat dissipation fan assembly in an embodiment of the present invention.

[0020] Figure 5 Schematic diagram of the disassembly of the rotating assembly in the embodiment of the present invention.

[0021] Figure 6 It is a three-dimensional diagram of a rotating shell in an embodiment of the present invention.

[0022] Figure 7 It is a three-dimensional diagram of the cooling part in the embodiment of the present invention.

[0023] Figure 8 It is a three-dimensional diagram of the medium circulation component in the embodiment of the present invention.

[0024] Fig. 9 4 is a three-dimensional diagram of a driving unit in an embodiment of the present invention.

[0025] Fig.10 It is an assembly diagram of the driving part, the rotating assembly and the medium circulation assembly in the embodiment of the present invention.

[0026] Fig.11 It is a schematic diagram of the structure when the rotating assembly is closed in an embodiment of the present invention.

[0027] Fig.12 This is a second stereoscopic view of a heat dissipation device for power conversion equipment according to an embodiment of the present invention.

[0028] Fig.13 It is a schematic diagram of the structure when the rotating assembly is opened in an embodiment of the present invention.

[0029] Figure markings 1-shell assembly, 11-upper frame, 12-lower frame, 13-support column, 14-mounting seat, 15-top cover, 16-opening, 17-water retaining ring, 18-fixed guide rail, 2-power conversion equipment, 3-heat dissipation fan assembly, 31-ventilation plate, 32-heat dissipation fan body, 4-rotating assembly, 41-rotating shell, 411-center hole, 412-cavity, 413-air vent, 414-water guide groove, 42-cooling part, 421-center pipe, 422-annular pipe, 423-transmission gear, 5-medium circulation assembly, 51-medium cooling and conveying part, 52-medium cold end conveying main pipe, 53-medium cold end conveying branch pipe, 54-medium hot end reflux branch pipe, 55-medium hot end reflux main pipe, 56-circulation pipe, 6-driving part, 61-driving member, 62-transmission member. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0032] See also Figures 1 to 13 , a heat dissipation device for power conversion equipment provided by an embodiment of the present invention includes a housing assembly 1, a power conversion device 2 and a heat dissipation fan assembly 3, the housing assembly 1 includes an upper frame 11, a lower frame 12 and a support column 13, the upper frame 11 is connected to the lower frame 12 through a plurality of support columns 13, the power conversion device 2 is installed on the upper surface of the lower frame 12, the upper frame 11, the lower frame 12 and the support column 13 are detachably connected, an opening 16 is provided on the surface of the upper frame 11, and a plurality of outlet holes are provided on the surface of the lower frame 12 to facilitate the connection of the power conversion device 2 with external power equipment, the heat dissipation fan assembly 3 is installed in the opening 16, and also includes a rotating assembly 4, a medium circulation assembly 5 and a driving unit 6;

[0033] The rotating assembly 4 is installed between the upper frame 11 and the lower frame 12. The rotating assembly 4 includes a rotating shell 41 and a cooling part 42. The cooling part 42 is installed in the rotating shell 41. The rotating shell 41 and the cooling part 42 are multiple in number. The rotating shell 41 and the cooling part 42 are located between two adjacent support columns 13. The surface of the rotating shell 41 is provided with air holes 413 and water guide grooves 414. The air holes 413 on both sides of the rotating shell 41 are not aligned with each other.

[0034] The medium cold end of the medium circulation component 5 is connected to the upper end of the cooling part 42, and the medium hot end is connected to the lower end of the cooling part 42;

[0035] The driving portion 6 is meshedly connected with the upper end of the cooling portion 42 to drive the rotating assembly 4 to rotate around its own axis.

[0036] In an embodiment of the present invention, temperature sensors and controllers are installed around the power conversion device 2. The rotating component 4 arranged between two adjacent support columns 13 is connected to the medium circulation component 5, which can cool the air entering the surface of the power conversion device 2 from the outside, thereby improving the heat dissipation efficiency of the power conversion device 2. When the driving unit 6 drives the rotating component 4 to rotate until the gap between the support columns 13 and the support columns 13 is sealed, the present invention has the characteristics of anti-dust and anti-rainwater. When the driving unit 6 drives the rotating component 4 to rotate until the gap between the support columns 13 is the largest, the air circulation can be maximized, so that the present invention has the characteristic of low energy consumption.

[0037] See also Figures 1 to 10 In one embodiment of the present invention, a center hole 411 and a cavity 412 are provided in the rotating shell 41, and the cavity 412 is symmetrically distributed about the center hole 411. A slot is provided between the center hole 411 and the cavity 412, and the upper end of the rotating shell 41 is in contact with and connected to the lower surface of the upper frame 11, and the lower end of the rotating shell 41 is in contact with and connected to the upper surface of the lower frame 12.

[0038] Furthermore, the cooling part 42 includes a central tube 421, an annular tube 422 and a transmission gear 423, the transmission gear 423 is fixedly sleeved on the central tube 421, the number of the annular tubes 422 is several, and the several annular tubes 422 are evenly connected to the surface of the central tube 421, a straight tube is connected between the annular tube 422 and the central tube 421, the central tube 421 is plug-connected in the central hole 411, the annular tube 422 and the straight tube are respectively embedded in the cavity 412 and the slot, the upper and lower ends of the central tube 421 are respectively connected to the medium cold end and the medium hot end of the medium circulation component 5, and the driving part 6 is meshed and connected with the transmission gear 423.

[0039] In the embodiment of the present invention, outside air enters the cavity 412 through the air holes 413 on one side. Since the air holes 413 on both sides of the rotating shell 41 are not aligned with each other, the air entering the cavity 412 does not directly enter the air holes 413 on the other side along a straight line, thereby extending the time the air stays in the cavity 412, and then the air can fully contact the surface of the annular tube 422. In this way, the cooling medium in the annular tube 422 can fully cool the air, thereby improving the heat dissipation efficiency and cooling effect.

[0040] See also Figures 1 to 13 In one embodiment of the present invention, the upper surface of the lower frame 12 is inclined from the inside toward the outside, the lower end of the rotating shell 41 is provided with an opening, the upper surface of the lower frame 12 is connected with a water retaining ring 17, the cooling fan assembly 3 is located on the inside of the water retaining ring 17, and the rotating assembly 4 is located on the outside of the water retaining ring 17.

[0041] In the embodiment of the present invention, when rain or dust falls on the upper surface of the lower frame 12, it will flow outward along the inclined upper surface of the lower frame 12. In addition, the design of the water retaining ring 17 makes the present invention dustproof and rainproof.

[0042] See also Figures 1 to 10 In one embodiment of the present invention, the driving part 6 includes a driving member 61 and a transmission member 62, the driving member 61 includes a driving motor and a driving gear, the transmission member 62 is a ring gear, the driving motor is connected to the driving gear through a driving shaft, the driving gear and the transmission gear 423 are both meshed and connected with the transmission member 62, a fixed guide rail 18 is installed above the upper frame 11, and the transmission member 62 is rotatably connected in the fixed guide rail 18.

[0043] In the embodiment of the present invention, the driving member 61 drives the central tube 421 to rotate through the transmission member 62 and the transmission gear 423 , and the rotating central tube 421 drives the rotating shell 41 to rotate together through the straight tube and the slot.

[0044] See also Figures 1 to 4 In one embodiment of the present invention, the heat dissipation fan assembly 3 includes a ventilation plate 31 and a heat dissipation fan body 32. The number of the heat dissipation fan bodies 32 is several, and several heat dissipation fan bodies 32 are installed on the surface of the ventilation plate 31. The ventilation plate 31 is installed in the opening 16. The heat dissipation fan body 32 can bring the heat around the power conversion device 2 below to the upper side. At the same time, the outside air will flow to the surrounding of the power conversion device 2.

[0045] See also Figures 1 to 10 In one embodiment of the present invention, the medium circulation component 5 includes a medium cooling and conveying part 51, a medium cold end conveying main pipe 52, a medium cold end conveying branch pipe 53, a medium hot end return branch pipe 54, a medium hot end return main pipe 55 and a circulation pipe 56. One ends of the medium cold end conveying branch pipe 53 and the medium hot end return branch pipe 54 are respectively plug-connected with the two ends of the central pipe 421, and the other ends of the medium cold end conveying branch pipe 53 and the medium hot end return branch pipe 54 are respectively connected to the medium cold end conveying main pipe 52 and the medium hot end return main pipe 55. The medium cold end conveying main pipe 52 is connected to the cold end outlet of the medium cooling and conveying part 51, and the medium hot end return main pipe 55 is connected to the hot end inlet of the medium cooling and conveying part 51 through the circulation pipe 56.

[0046] In an embodiment of the present invention, the shell assembly 1 also includes a mounting seat 14 and a top cover 15, wherein the top cover 15 is mounted above the upper frame, and the mounting seat 14 is mounted below the lower frame 12, and the medium cooling and conveying part 51 and the driving member 61 are mounted on the top cover 15, and the medium cooling and conveying part 51 includes a refrigerator and a pump body, and the pressure generated by the pump body can convey the coolant in the refrigerator to each central tube 421 and annular tube 422 through the medium cold end conveying main pipe 52 and the medium cold end conveying branch pipe 53, and the coolant in each central tube 421 and the annular tube 422 will enter the refrigerator along the medium hot end return branch pipe 54, the medium hot end return main pipe 55 and the circulation pipe 56, and the cycle is repeated.

[0047] The working process of the embodiment of the present invention is as follows: when encountering strong sandstorms or rainy weather, the heat dissipation principle of the present invention is: first start the driving member 61, the driving member 61 drives the central tube 421 to rotate through the transmission member 62 and the transmission gear 423, and the rotating central tube 421 drives the rotating shell 41 to rotate together through the straight tube and the card slot until the rotating shell 41 seals the gap between the support columns 13 and the support columns 13 and stops. At this time, when the heat dissipation fan body 32 on the ventilation plate 31 is working, the outside air can pass through the air vents 413 through the rotating shell 41 and blow toward the electric The surface of the power conversion device 2 is provided with a heat dissipation function through air circulation. The aperture of the air vent 413 is small, and the wind and sand cannot pass through the air vent 413 into the rotating shell 41. Even if a small amount of wind and sand enters the rotating shell 41, due to the setting of the bottom opening of the rotating shell 41, the wind and sand will fall on the upper surface of the lower frame 12 through the bottom opening under the action of gravity. Since the upper surface of the lower frame 12 is an inclined surface, the wind and sand will roll down around along the inclined surface to prevent the wind and sand from accumulating on the upper surface of the lower frame 12. When the surface temperature of the power conversion device 2 is relatively high, the wind and sand will not be able to enter the rotating shell 41. When the temperature is high, the temperature sensor arranged around the power conversion device 2 will automatically monitor the temperature change and start the medium cooling and conveying part 51 through the internal controller. The medium cooling and conveying part 51 conveys the coolant to each central tube 421 and the annular tube 422 through the medium cold end conveying main pipe 52 and the medium cold end conveying branch pipe 53. In this way, the temperature in the rotating shell 41 will be reduced. When the air coming in through the air vent 413 passes near the annular tube 422, the air is blown to the surface of the power conversion device 2 after being cooled, thereby improving the heat dissipation efficiency. If there is moisture in the air, the moisture will condense on the surface of the annular tube 422 and the surface of the rotating shell 41. The condensed water droplets on the surface of the rotating shell 41 will automatically flow along the water guide groove 414 to the upper surface of the inclined lower frame 12 under the action of gravity. The condensed water droplets on the surface of the annular tube 422 will drip through the opening under the action of gravity onto the upper surface of the inclined lower frame 12. The condensed water droplets can also play a role in taking away the sand and dust particles adhering to the surface of the annular tube 422 and the surface of the rotating shell 41 during the falling process.

[0048] When it is rainy, when rainwater passes through the air holes 413 and enters the interior of the rotating shell 41, since the air holes 413 on both sides of the rotating shell 41 are not aligned, the rainwater can only flow along the inner wall of the rotating shell 41 through the bottom opening to the inclined upper surface of the lower frame 12. In addition, due to the design of the water retaining ring 17 on the upper surface of the lower frame 12, rainwater will not enter the surface of the power conversion equipment 2. Therefore, the present invention has the characteristics of dust and rain protection while maintaining a good heat dissipation effect.

[0049] When encountering dry and sunny weather, the working principle of the present invention is: the driving part 6 drives the rotating component 4 to rotate 90 degrees until the gap between the rotating shell 41 and the support column 13 is the largest and stops. Since the contact area between the outside air and the surface of the power conversion device 2 is maximized, at this moment only the heat dissipation fan body 32 needs to work to effectively dissipate the heat of the power conversion device 2, which has the characteristics of good heat dissipation effect and low energy consumption.

[0050] For those skilled in the art, although several embodiments and examples of the present invention are described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the subject matter of the invention. These embodiments and their variations are included in the scope and subject matter of the invention, and are included in the invention described in the claims and the scope of their equivalents.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat dissipation device for a power conversion device, comprising a housing assembly, a power conversion device and a heat dissipation fan assembly, characterized in that: The housing assembly includes an upper frame, a lower frame and support columns, the upper frame is connected to the lower frame through a plurality of support columns, the power conversion device is installed on the upper surface of the lower frame, the upper frame surface is provided with an opening, the heat dissipation fan assembly is installed in the opening, and also includes a rotating assembly, a medium circulation assembly and a driving part; The rotating assembly is installed between the upper frame and the lower frame, and the rotating assembly includes a rotating shell and a cooling part, and the cooling part is installed in the rotating shell. The rotating shell and the cooling part are in a plurality of numbers, and the rotating shell and the cooling part are located between two adjacent support columns. The rotating shell surface is provided with air holes and water guide grooves, and the air holes on both sides of the rotating shell are not aligned with each other. The medium cold end of the medium circulation assembly is connected to the upper end of the cooling part, and the medium hot end is connected to the lower end of the cooling part; The driving portion is meshedly connected with the upper end of the cooling portion, and is used to drive the rotating assembly to rotate around its own axis; The rotating shell is provided with a center hole and a cavity, the cavity is symmetrically distributed about the center hole, a slot is provided between the center hole and the cavity, the upper end of the rotating shell is in contact with the lower surface of the upper frame, and the lower end of the rotating shell is in contact with the upper surface of the lower frame; The cooling part includes a central tube, an annular tube and a transmission gear, the transmission gear is fixedly sleeved above the central tube, the number of the annular tubes is several, the several annular tubes are evenly connected to the surface of the central tube, a straight tube is connected between the annular tube and the central tube, the central tube is plug-connected in the central hole, the annular tube and the straight tube are respectively embedded in the cavity and the card slot, the upper and lower ends of the central tube are respectively connected to the medium cold end and the medium hot end of the medium circulation component, and the driving part is meshed and connected with the transmission gear; The medium circulation assembly comprises a medium cooling and conveying part, a medium cold end conveying main pipe, a medium cold end conveying branch pipe, a medium hot end return branch pipe, a medium hot end return main pipe and a circulation pipe, one end of the medium cold end conveying branch pipe and the medium hot end return branch pipe are respectively plug-connected with the two ends of the central pipe, the other ends of the medium cold end conveying branch pipe and the medium hot end return branch pipe are respectively connected to the medium cold end conveying main pipe and the medium hot end return main pipe, the medium cold end conveying main pipe is connected to the cold end outlet of the medium cooling and conveying part, and the medium hot end return main pipe is connected to the hot end inlet of the medium cooling and conveying part through the circulation pipe; The upper surface of the lower frame is inclined from the inside toward the outside, the lower end of the rotating shell is provided with an opening, the upper surface of the lower frame is connected with a water retaining ring, the cooling fan assembly is located on the inside of the water retaining ring, and the rotating assembly is located on the outside of the water retaining ring; The driving part includes a driving member and a transmission member, the driving member includes a driving motor and a driving gear, the transmission member is a ring gear, the driving motor is connected to the driving gear through a driving shaft, the driving gear and the transmission gear are both meshed and connected with the transmission member, a fixed guide rail is installed above the upper frame, and the transmission member is rotatably connected in the fixed guide rail; When the surface temperature of the power conversion equipment is high, the temperature sensors installed around the power conversion equipment will automatically monitor the temperature change and start the medium cooling and transportation part through the internal controller. The medium cooling and transportation part transports the coolant to each central tube and annular tube through the medium cold end transportation main pipe and the medium cold end transportation branch pipe.

2. A heat dissipation device for power conversion equipment according to claim 1, characterized in that: The heat dissipation fan assembly comprises a ventilation plate and a heat dissipation fan body. The number of the heat dissipation fan bodies is several, and the several heat dissipation fan bodies are installed on the surface of the ventilation plate. The ventilation plate is installed in the opening.

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